USRE30707E - Safety belt clamping device - Google Patents

Safety belt clamping device Download PDF

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Publication number
USRE30707E
USRE30707E US06/051,257 US5125779A USRE30707E US RE30707 E USRE30707 E US RE30707E US 5125779 A US5125779 A US 5125779A US RE30707 E USRE30707 E US RE30707E
Authority
US
United States
Prior art keywords
belt
lever
clamping
housing
clamping surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/051,257
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English (en)
Inventor
Heinz-Dieter Adomeit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell International Inc
Original Assignee
Allied Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Allied Corp filed Critical Allied Corp
Application granted granted Critical
Publication of USRE30707E publication Critical patent/USRE30707E/en
Assigned to ALLIED CORPORATION reassignment ALLIED CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ALLIED CHEMICAL CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/18—Anchoring devices
    • B60R22/185—Anchoring devices with stopping means for acting directly upon the belt in an emergency, e.g. by clamping or friction
    • B60R22/1855—Anchoring devices with stopping means for acting directly upon the belt in an emergency, e.g. by clamping or friction the means being sensitive to belt tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/42—Belt retractors, e.g. reels self-locking in an emergency having means for acting directly upon the belt, e.g. by clamping or friction

Definitions

  • Automatic belt winding devices such as are used nowadays in 3-point automatic safety belts for automobile passengers, exert a constant retractive force F w on the belt between the belt anchorage points and belt guide points D, A, B and C (FIG. 1), pulling it around the passenger and drawing it back to the take-up reel (at point D), with the result that the shoulder belt between point A and point B constantly rests on the upper part of the passenger's body, although the passenger can bend forward against this retractive force F w and can move freely.
  • the retractive force F w should be between 0.2 and 0.5 kp.
  • the belting should "lock" under the following conditions:
  • This invention relates generally as indicated to a device for clamping a safety belt to prevent it being unwound from a reel.
  • An object of the invention is to provide an improved automatic locking device so that the belt will be reliably locked and can be released after locking once the influence causing it to operate is no longer acting, without any danger of the belt being torn during locking as a result of relative movements between belt and locking surfaces, and locking forces transverse to the perpendicular force direction.
  • this problem is solved by passing the belt in a frictionless manner between two guide points, over or under the locking lever, and between the locking surfaces, said locking surfaces being practically parallel to one another when actuated and locking being effected by a substantially purely perpendicular force (force at right angles) produced by the kinematics of motion of the lever-side locking surface, and, finally, by arranging the lever at a lever ratio b/a so that at most the locking coefficient ⁇ K of the pair of factors: .[.beltlocking.]. .Iadd.belt-locking .Iaddend.surface in any particular case is reached.
  • a possible arrangement of the afore-mentioned kinematics of motion is an "articulated" or pivoted arrangement of the locking lever so that the lever-side locking is perpendicular to the tangent to the circle of motion around this pivoting point.
  • one of the two locking surfaces is arranged so that it can be tilted.
  • the aim regarding the kinematics of motion of the locking lever namely that locking will take place under the action of a force which is as purely perpendicular as possible, will in addition be achieved.
  • This is effected for example by a pivoted, tiltable arrangement of the locking surface in the locking lever or housing the pivoting-tilting axis being parallel to the locking lever pivot and thus generally transverse to the belt withdrawal direction.
  • a winding reel arresting device sensitive to acceleration of the vehicle and which is known per se is provided, and acts on the locking lever.
  • the purpose of this is to initiate locking of the belt, for example in such a way that when the winding reel is stopped the belt withdrawal force can increase and the locking lever is thereby brought into the locking position against its restraining elastic force. After the belt has been locked the perpendicular locking force is only still dependent on the belt withdrawal force, whereupon the winding reel arresting device is momentarily not subject to any force.
  • FIG. 1 shows the installation of a 3-point automatic safety belt
  • FIG. 2 shows a first embodiment of an automatic clamping device according to the present invention, diagrammatically and partly in section, in which locking surfaces, locking lever and winding reel are arranged in a housing,
  • FIG. 3 is an enlarged view of the upper part of FIG. 2,
  • FIG. 4 shows a vehicle acceleration sensing device for arresting the winding reel of the belt
  • FIG. 5 shows the installation of the automatic locking device in a housing separate from the winding reel
  • FIG. 6 shows another embodiment of automatic clamping device in which the clamping surfaces are arranged in a pivoted manner.
  • FIGS. 2 and 3 The embodiment shown in FIGS. 2 and 3 comprises a housing 24 in which is housed a reel 2 for the safety belt 1. Pivotably mounted in the housing by a pivot 7 is a lever 4 having at its ends guide means 3 and 5. Provided on the lever 4 intermediate its ends is a clamping member 8 which co-operates with a clamping member 8 provided on the housing 24.
  • the belt 1 is guided from the spring-actuated winding reel 2 to the guide means 3 and extends over the lever 4, passing between the clamping members 8, to the guide means 5, and thence passes upwards from the automatic clamping device.
  • the guide means 3 and 5 may each be formed as a reel or as a simple steel hoop.
  • the lever 4 is held in its rest position (FIG. 1) by a spring 6 so that the belt has a tension force applied to it and the belt 1 can roll up and unroll freely.
  • Locking or clamping of the belt 1 is produced by upward movement of the locking lever 4 around the pivot 7 against the force of the spring 6, and this effects clamping of the belt 1 between the clamping surfaces 8.
  • At least one of the surfaces 8 can be provided on a tiltably mounted member, tiltable on a pivot 8a as shown in FIG. 6 which is transverse to the belt withdrawal direction.
  • ⁇ K must be greater than 0.25 for a satisfactory locking to take place.
  • FIG. 4 illustrates an example of arresting the winding reel 2 for locking to take place at a vehicle deceleration of 0.4 g in any arbitrary direction.
  • a small pendulum 9 with a link 9a urges a catch 10 with a pawl 10a against a toothed wheel 11 mounted axially on the winding reel 2, and stops the axle 13 of the said winding reel 2.
  • All the actuating elements for this action may be small and light since they only have to exert slight retaining forces to overcome the elasticity of the retaining springs 6 of the locking lever 4 so that the said locking lever 4 comes into the locking position.
  • F 8 increases constantly with increasing F 5 and ensures locking of the belt, whereupon the arresting device is momentarily not subject to any forces.
  • FIG. 2 illustrates the locking procedure for a belt acceleration greater than 0.5 g.
  • the retaining spring 6 of the locking lever 4 should so be arranged with regard to its characteristic and initial tension force that as a result of the friction at the guide means 3 and 5, the .[.refractive.]. .Iadd.retractive .Iaddend. force F W (FIG. 1) and the inertia of the winding reel 2 produce a tilting of the locking lever 4 against the elastic force of the spring 6 in the locking position.
  • the locking device 23 (FIG. 5) is not provided with a winding reel 2 which is in a separate housing 21 (FIG. 5), there is the possibility of having the locking device .[.25.]. .Iadd.23 .Iaddend.at any desired position on the vehicle door pillar, and in the most favourable case of mounting it in conjunction with the guide fitment A. In this way the length of the expandable part of the belt 1 can be altered so that the maximum possible pre-displacement of the passenger can be utilised in the event of an accident.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)
US06/051,257 1974-07-09 1979-06-22 Safety belt clamping device Expired - Lifetime USRE30707E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2432956 1974-07-09
DE2432956A DE2432956C3 (de) 1974-07-09 1974-07-09 Gurtaufwickelklemmautomat

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US59371075A Continuation 1974-07-09 1975-07-07
US05/789,607 Reissue US4120466A (en) 1974-07-09 1977-04-21 Safety belt clamping device

Publications (1)

Publication Number Publication Date
USRE30707E true USRE30707E (en) 1981-08-11

Family

ID=5920091

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/051,257 Expired - Lifetime USRE30707E (en) 1974-07-09 1979-06-22 Safety belt clamping device

Country Status (9)

Country Link
US (1) USRE30707E (enrdf_load_stackoverflow)
JP (1) JPS5819303B2 (enrdf_load_stackoverflow)
BE (1) BE831177A (enrdf_load_stackoverflow)
CA (1) CA1034555A (enrdf_load_stackoverflow)
DE (1) DE2432956C3 (enrdf_load_stackoverflow)
FR (1) FR2277601A1 (enrdf_load_stackoverflow)
GB (1) GB1497750A (enrdf_load_stackoverflow)
IT (1) IT1036572B (enrdf_load_stackoverflow)
SE (1) SE424265B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422593A (en) 1981-05-29 1983-12-27 Juichiro Takada Belt clamps for vehicle occupant restraint belt systems
US4997140A (en) * 1989-04-21 1991-03-05 Occupant Safety Systems Inc. Retractor with auxiliary brake mechanism

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552991Y2 (enrdf_load_stackoverflow) * 1974-12-19 1980-01-24
DE2527422A1 (de) * 1975-06-20 1977-01-13 Adomeit Heinz Dieter Dipl Ing Gurtaufwickelklemmautomat mit schnellsperre fuer sicherheitsgurte
DE2752860A1 (de) * 1976-11-30 1978-06-01 Allied Chem Klemmvorrichtung fuer einen sicherheitsgurt und rueckhaltesystem
JPS581316Y2 (ja) * 1978-03-24 1983-01-11 トヨタ自動車株式会社 シ−トベルト用ロツク装置
JPS5738174Y2 (enrdf_load_stackoverflow) * 1978-03-28 1982-08-23
JPS55107156U (enrdf_load_stackoverflow) * 1979-01-22 1980-07-26
CA1133868A (en) * 1979-01-22 1982-10-19 Juichiro Takada Belt clamps for vehicle passenger restraint belts
US4343488A (en) * 1979-11-05 1982-08-10 Allied Corporation Seat belt system with reduced spooling
DE2950443C2 (de) * 1979-12-14 1986-02-20 TRW Repa GmbH, 7077 Alfdorf Gurtband-Hemmvorrichtung
DE3008299C2 (de) * 1980-03-04 1987-04-23 TRW Repa GmbH, 7077 Alfdorf Aufrollautomat für einen Sicherheitsgurt
DE3009701A1 (de) * 1980-03-13 1981-09-17 Repa Feinstanzwerk Gmbh, 7071 Alfdorf Aufrollautomat fuer einen sicherheitsgurt
JPS5715299A (en) * 1980-07-02 1982-01-26 Panafacom Ltd Memory access control system of doubled memory
US4401281A (en) * 1980-07-03 1983-08-30 Juichiro Takada Belt clamps for vehicle occupant restraint belt systems
DE3115726C2 (de) * 1981-04-18 1986-09-25 Autoflug Gmbh, 2084 Rellingen Umlenkbeschlag für einen Sicherheitsgurt, insbesondere für Kraftfahrzeuge
DE3246638A1 (de) * 1982-12-16 1984-06-20 Heinz-Dieter Dr.-Ing. 1000 Berlin Adomeit Vorrichtung zum loesbaren festklemmen eines strangfoermigen materials
DE3421837A1 (de) * 1984-02-16 1985-12-12 Hans-Hellmut Dipl.-Ing. 2061 Sülfeld Ernst Arretiervorrichtung fuer einen sicherheitsgurt
DE3425526A1 (de) * 1984-07-11 1986-02-27 Heinz-Dieter Dr.-Ing. 1000 Berlin Adomeit Gurtaufwickelklemmautomat
DE3543959C2 (de) * 1984-12-21 1998-06-10 Autoliv Kolb Gmbh & Co Sicherheitsgurtaufroller mit Gurt-Klemmvorrichtung
JPS63228923A (ja) * 1987-03-17 1988-09-22 日本電気株式会社 負荷投入・切断回路
GB2225704A (en) * 1988-11-23 1990-06-13 Spea Trading Limited Device for inertial clamping of tapes and safety belts
GB8903570D0 (en) * 1989-02-16 1989-04-05 Europ Components Corp Safety belt mechanism
GB2247393B (en) * 1990-09-03 1994-07-06 Autoliv Dev Improvements in or relating to a belt deflector

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705529A (en) * 1952-08-07 1955-04-05 Us Rubber Co Safety device
US3003589A (en) * 1960-08-22 1961-10-10 Azusa Engineering Inc Vehicular brake
US3205004A (en) * 1962-07-26 1965-09-07 Pacific Scientific Co Door jamb mounted safety harness
US3323831A (en) * 1963-02-27 1967-06-06 Thompson Ind Inc Retractable seat belt construction
US3389874A (en) * 1966-05-16 1968-06-25 Kent Eng Seat belt retractor
US3425645A (en) * 1968-11-20 1969-02-04 Richard G Board Retractable safety belt apparatus and the like
US3431019A (en) * 1967-04-21 1969-03-04 Robbins Seat Belt Co Inertia retracting device with energy absorbing element
US3439932A (en) * 1967-04-21 1969-04-22 Robbins Seat Belt Co Belt retracting device with pendulum actuated locking means
US3442529A (en) * 1967-04-24 1969-05-06 Robbins Seat Belt Co Inertia retracting device with weight actuated take-up
US3467337A (en) * 1967-04-03 1969-09-16 James A Putman Restraint device
US3494571A (en) * 1968-06-27 1970-02-10 Robbins Seat Belt Co Clamping device for a seat belt
DE1928895A1 (de) * 1969-06-06 1970-12-10 Sigmatex Ag Anordnung an einem Sicherheitsgurt fuer Kraftfahrzeuge mit Gurtaufroller
US3592507A (en) * 1969-08-15 1971-07-13 Gen Motors Corp Restraint belt lock
US3692253A (en) * 1965-06-21 1972-09-19 Borg Warner Belt retractor and locking mechanism
US3722824A (en) * 1970-11-24 1973-03-27 Tokai Rika Co Ltd Automatic locking device for a safety belt in a motor car
US3817473A (en) * 1964-11-05 1974-06-18 R Board Retractable safety belts
US3817474A (en) * 1965-04-01 1974-06-18 R Board Retractable safety belt
US3847434A (en) * 1973-05-02 1974-11-12 Sigmatex Ag Vehicle occupant restraint system
US3886374A (en) * 1972-10-05 1975-05-27 Renault Lockable slide fitting for a safety belt system
US3885812A (en) * 1973-01-26 1975-05-27 Peugeot & Renault Locking device in particular for a safety belt
US3911535A (en) * 1973-12-03 1975-10-14 Peugeot Blocking device for a vehicle belt
DE2414952A1 (de) 1974-03-28 1975-10-16 Sigmatex Ag Gurtband-blockiereinrichtung
US4009510A (en) * 1975-01-10 1977-03-01 Lindblad O L Deflection device for safety belts

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705529A (en) * 1952-08-07 1955-04-05 Us Rubber Co Safety device
US3003589A (en) * 1960-08-22 1961-10-10 Azusa Engineering Inc Vehicular brake
US3205004A (en) * 1962-07-26 1965-09-07 Pacific Scientific Co Door jamb mounted safety harness
US3323831A (en) * 1963-02-27 1967-06-06 Thompson Ind Inc Retractable seat belt construction
US3817473A (en) * 1964-11-05 1974-06-18 R Board Retractable safety belts
US3817474A (en) * 1965-04-01 1974-06-18 R Board Retractable safety belt
US3692253A (en) * 1965-06-21 1972-09-19 Borg Warner Belt retractor and locking mechanism
US3389874A (en) * 1966-05-16 1968-06-25 Kent Eng Seat belt retractor
US3467337A (en) * 1967-04-03 1969-09-16 James A Putman Restraint device
US3431019A (en) * 1967-04-21 1969-03-04 Robbins Seat Belt Co Inertia retracting device with energy absorbing element
US3439932A (en) * 1967-04-21 1969-04-22 Robbins Seat Belt Co Belt retracting device with pendulum actuated locking means
US3442529A (en) * 1967-04-24 1969-05-06 Robbins Seat Belt Co Inertia retracting device with weight actuated take-up
US3494571A (en) * 1968-06-27 1970-02-10 Robbins Seat Belt Co Clamping device for a seat belt
US3425645A (en) * 1968-11-20 1969-02-04 Richard G Board Retractable safety belt apparatus and the like
DE1928895A1 (de) * 1969-06-06 1970-12-10 Sigmatex Ag Anordnung an einem Sicherheitsgurt fuer Kraftfahrzeuge mit Gurtaufroller
US3592507A (en) * 1969-08-15 1971-07-13 Gen Motors Corp Restraint belt lock
US3722824A (en) * 1970-11-24 1973-03-27 Tokai Rika Co Ltd Automatic locking device for a safety belt in a motor car
US3886374A (en) * 1972-10-05 1975-05-27 Renault Lockable slide fitting for a safety belt system
US3885812A (en) * 1973-01-26 1975-05-27 Peugeot & Renault Locking device in particular for a safety belt
US3847434A (en) * 1973-05-02 1974-11-12 Sigmatex Ag Vehicle occupant restraint system
US3911535A (en) * 1973-12-03 1975-10-14 Peugeot Blocking device for a vehicle belt
DE2414952A1 (de) 1974-03-28 1975-10-16 Sigmatex Ag Gurtband-blockiereinrichtung
US4009510A (en) * 1975-01-10 1977-03-01 Lindblad O L Deflection device for safety belts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422593A (en) 1981-05-29 1983-12-27 Juichiro Takada Belt clamps for vehicle occupant restraint belt systems
US4997140A (en) * 1989-04-21 1991-03-05 Occupant Safety Systems Inc. Retractor with auxiliary brake mechanism

Also Published As

Publication number Publication date
DE2432956A1 (de) 1976-02-05
BE831177A (fr) 1975-11-03
CA1034555A (en) 1978-07-11
FR2277601A1 (fr) 1976-02-06
SE424265B (sv) 1982-07-12
JPS5164232A (en) 1976-06-03
DE2432956B2 (enrdf_load_stackoverflow) 1978-11-23
IT1036572B (it) 1979-10-30
JPS5819303B2 (ja) 1983-04-18
DE2432956C3 (de) 1979-07-19
GB1497750A (en) 1978-01-12
FR2277601B1 (enrdf_load_stackoverflow) 1979-04-13
SE7507682L (sv) 1976-01-12

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ALLIED CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:ALLIED CHEMICAL CORPORATION;REEL/FRAME:003928/0185

Effective date: 19810427